Read the following passage, then choose the correct answer to questions 26-30.
The invention of the phonograph happened quite by accident. Thomas Edison moved to Menlo
Park, New Jersy in 1876, where he established an industrial research laboratory. There, Edison was
working on a carbon telephone transmitter to improve the existing Bell telephone system.
In that laboratory a year later, Edison invented the phonograph while he was trying to improve a
telegraph repeater. He attached a telephone diaphragm to the needle in the telegraph repeater; in this way,
he was able to reproduce a recording that could be played back. After he made some improvements to the
machine, he tested it. He recited "Mary Had a Little Lamb" into the machine and played his voice back to
a very surprised audience.
26. What is the best title for the passage?
A. Thomas Edison's many inventions
at
B. Improvements in telephone and telegraph
D. An accidental invention
C. The History of Menlo Park
27. In what year did the invention of phonograph occur?
B. 1877
A. 1876
C. 1878
the phonograph?
B. A telegraph diaphragm
D. A telephone diaphragm
28. What was Edison working on when he created
A. A telegraph repeater
C. A telephone repeater
29. According to the passage, how was the phonograph made?
A. With a telephone needle and a recorder
C. With only a telegraph repeater
D. the article does not say
B. From a recording of a telegraph
D. From a combination of telephone & telegraph pa
30. According to the passage, how did Edison test his new invention?
A. He made improvements to the machine.
C. He read a children's rhyme.
B. He used a carbon transmitter.
D. He produced the audience voice.
a correct answer to questions 31-35.